The phrase "not turn a hair" is an idiomatic expression used to describe someone's calm and composed demeanor or lack of visible emotion even in the face of shocking or distressing situations. It refers to a person's ability to remain unruffled or unfazed by unexpected or alarming events, maintaining a stoic composure.
The phrase is often used metaphorically to imply that the individual's hair does not become disheveled or stand on end, which can be a physical manifestation of fear, shock, or surprise. When a person does not turn a hair, it suggests that they are able to maintain their cool and keep their emotions in check, regardless of the circumstances they find themselves in.
This expression can be applied to various scenarios, such as witnessing accidents, hearing distressing news, being confronted with difficult or challenging situations, or even encountering something extraordinary. It suggests that the individual possesses a remarkable level of self-control, allowing them to exhibit a composed and unaffected response.
In essence, "not turn a hair" refers to a person's ability to remain outwardly calm and collected, betraying no visible signs of alarm, fear, or astonishment, even when others might become visibly flustered or agitated. It implies a state of emotional equilibrium and composure that enables someone to deal with unexpected or unsettling events without losing their cool.
